The modulation transfer function (MTF) is a critical metric for assessing the performance of optical imaging systems, providing a quantitative measure of how effectively these systems transfer ...

WASHINGTON -- Researchers have developed a new self-calibrating endoscope that produces 3D images of objects smaller than a single cell. Without a lens or any optical, electrical or mechanical ...

The optical system is central to a star sensor, focusing starlight onto the image sensor. The tracker's reliability and ...

Fluorescence microscopy techniques are powerful tools for probing very small signals and revealing three-dimensional (3D) structural and functional properties of biological samples with high ...

A flexible perovskite light-emitting device integrating ester polymer crystallization enables optical logic signals under bending and stretching, paving the way for motion capture and intelligent ...